Weakness (CWE)
CWE-434: Unrestricted Upload of File with Dangerous Type
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
How to prevent it (8 mitigations)
-
Architecture and Design
Generate a new, unique filename for an uploaded file instead of using the user-supplied filename, so that no external input is used at all.[REF-422] [REF-423]
-
Architecture and Design
When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
-
Architecture and Design
Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically. [REF-423]
-
Implementation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
For example, limiting filenames to alphanumeric characters can help to restrict the introduction of unintended file extensions.
-
Architecture and Design
Define a very limited set of allowable extensions and only generate filenames that end in these extensions. Consider the possibility of XSS (CWE-79) before allowing .html or .htm file types.
-
Implementation
Ensure that only one extension is used in the filename. Some web servers, including some versions of Apache, may process files based on inner extensions so that "filename.php.gif" is fed to the PHP interpreter.[REF-422] [REF-423]
-
Implementation
When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.
-
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Source: MITRE CWE-434
3,441 results · Feed
-
Critical 9.1
WordPress Import any XML or CSV File to WordPress plugin <= 3.6.7 - Authenticated Arbitrary Code Execution vulnerability
Authenticated Arbitrary Code Execution vulnerability in Soflyy Import any XML or CSV File to WordPress plugin <= 3.6.7 at WordPress.
-
Low 3.7
Unrestricted Upload of File with Dangerous Type in octoprint/octoprint
Unrestricted Upload of File with Dangerous Type in GitHub repository octoprint/octoprint prior to 1.8.3.
-
Critical 9.8CVE-2022-38916 EPSS 18%
Pagekit vulnerable to Unrestricted Upload of File with Dangerous Type
A file upload vulnerability exists in the storage feature of pagekit 1.0.18, which allows an attacker to upload malicious files
-
Critical 9.8
The d8s-python for python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third par…
-
High 7.2
Garage Management System v1.0 is vulnerable to Arbitrary code execution via ip/garage/php_action/editProductImage.php?i…
-
Medium 6.3
codeprojects Online Driving School registration.php unrestricted upload
A vulnerability was found in codeprojects Online Driving School. It has been rated as critical. Affected by this issue is some unknown functionality of the file /registration.php. The manipulation leads to unrestricted upload. The attack may be launched remot…
-
Critical 9.8
FeehiCMS has an arbitrary file upload vulnerability
There is an arbitrary file upload vulnerability in FeehiCMS 2.0.8 at the head image upload, that allows attackers to execute relevant PHP code.
-
High 7.2
WordPress Uploading SVG, WEBP and ICO files plugin <= 1.0.1 - Authenticated Arbitrary File Upload vulnerability
Authenticated Arbitrary File Upload vulnerability in dmitrylitvinov Uploading SVG, WEBP and ICO files plugin <= 1.0.1 at WordPress.
-
Unscored —
Advanced Custom Fields 5.0-5.12.2 - Unauthenticated File Upload
The Advanced Custom Fields WordPress plugin before 5.12.3, Advanced Custom Fields Pro WordPress plugin before 5.12.3 allows unauthenticated users to upload files allowed in a default WP configuration (so PHP is not possible) if there is a frontend form availa…
-
Medium 6.3
SourceCodester Simple and Nice Shopping Cart Script profile.php unrestricted upload
A vulnerability was found in SourceCodester Simple and Nice Shopping Cart Script. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /mkshop/Men/profile.php. The manipulation leads to unrestricted upload. …
-
Unscored —
GREYD.SUITE < 1.2.7 - Unauthenticated File Upload to RCE
The GREYD.SUITE WordPress theme does not properly validate uploaded custom font packages, and does not perform any authorization or csrf checks, allowing an unauthenticated attacker to upload arbitrary files including php source files, leading to possible rem…
-
Medium 6.3
SourceCodester Zoo Management System apply_vacancy.php unrestricted upload
A vulnerability was found in SourceCodester Zoo Management System. It has been classified as critical. Affected is an unknown function of the file /pages/apply_vacancy.php. The manipulation of the argument filename leads to unrestricted upload. It is possible…
-
Medium 6.3
SourceCodester Gas Agency Management System oneWord.php unrestricted upload
A vulnerability classified as critical was found in SourceCodester Gas Agency Management System. Affected by this vulnerability is an unknown functionality of the file /gasmark/assets/myimages/oneWord.php. The manipulation of the argument shell leads to unres…
-
Medium 6.3
SourceCodester Company Website CMS add-portfolio.php unrestricted upload
A vulnerability was found in SourceCodester Company Website CMS and classified as critical. Affected by this issue is some unknown functionality of the file /dashboard/add-portfolio.php. The manipulation of the argument ufile leads to unrestricted upload. The…
-
Medium 6.3
SourceCodester Company Website CMS Add Service add-service.php unrestricted upload
A vulnerability, which was classified as critical, was found in SourceCodester Company Website CMS. Affected is an unknown function of the file /dashboard/add-service.php of the component Add Service Handler. The manipulation leads to unrestricted upload. It …
-
Medium 4.7
SourceCodester Gym Management System unrestricted upload
A vulnerability was found in SourceCodester Gym Management System. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /mygym/admin/index.php?view_exercises. The manipulation leads to unrestricted upload. T…
-
Medium 6.3
SourceCodester Simple Online Book Store System Admin_ add.php unrestricted upload
A vulnerability has been found in SourceCodester Simple Online Book Store System and classified as critical. This vulnerability affects unknown code of the file Admin_ add.php. The manipulation leads to unrestricted upload. The attack can be initiated remotel…
-
Medium 6.3
SourceCodester Gym Management System Background Management add_exercises.php unrestricted upload
A vulnerability, which was classified as critical, has been found in SourceCodester Gym Management System. Affected by this issue is some unknown functionality of the file /admin/add_exercises.php of the component Background Management. The manipulation of th…
-
Medium 6.3
SourceCodester Company Website CMS Add Blog add-blog.php unrestricted upload
A vulnerability was found in SourceCodester Company Website CMS. It has been declared as critical. This vulnerability affects unknown code of the file /dashboard/add-blog.php of the component Add Blog. The manipulation of the argument ufile leads to unrestric…
-
Medium 6.3
SourceCodester Company Website CMS Background Upload Logo Icon updatelogo.php unrestricted upload
A vulnerability was found in SourceCodester Company Website CMS. It has been classified as critical. This affects an unknown part of the file /dashboard/updatelogo.php of the component Background Upload Logo Icon. The manipulation of the argument xfile/ufile …
-
Medium 6.5
User Private Files < 1.1.3 - Subscriber+ Arbitrary File Upload
The Frontend File Manager & Sharing WordPress plugin before 1.1.3 does not filter file extensions when letting users upload files on the server, which may lead to malicious code being uploaded.
-
Unscored —
Directorist - Business Directory Plugin < 7.2.3 - Admin+ Arbitrary File Upload
The Directorist WordPress plugin before 7.2.3 allows administrators to download other plugins from the same vendor directly to the site, but does not check the URL domain it gets the zip files from. This could allow administrators to run code on the server, w…
-
Medium 6.3
SourceCodester Company Website CMS unrestricted upload
A vulnerability was found in SourceCodester Company Website CMS and classified as critical. This issue affects some unknown processing. The manipulation leads to unrestricted upload. The attack may be initiated remotely. The exploit has been disclosed to the …
-
Medium 6.3
SourceCodester Alphaware Simple E-Commerce System Background Management Page admin_feature.php unrestricted upload
A vulnerability was found in SourceCodester Alphaware Simple E-Commerce System. It has been declared as critical. This vulnerability affects unknown code of the file admin_feature.php of the component Background Management Page. The manipulation leads to unre…
-
High 7.3
jeecg-boot unrestricted upload
A vulnerability was found in jeecg-boot. It has been declared as critical. This vulnerability affects unknown code of the file /api/. The manipulation of the argument file leads to unrestricted upload. The attack can be initiated remotely. The exploit has bee…
-
High 7.2
WordPress Enable SVG, WebP & ICO Upload plugin <= 1.0.1 - Authenticated Arbitrary File Upload vulnerability
Authenticated (author or higher user role) Arbitrary File Upload vulnerability in ideasToCode Enable SVG, WebP & ICO Upload plugin <= 1.0.1 at WordPress.
-
High 8.8
Feehi CMS arbitrary code execution via crafted PHP file
An arbitrary file upload vulnerability in the Advertising Management module of Feehi CMS v2.1.1 allows attackers to execute arbitrary code via a crafted PHP file.
-
High 7.2
OpenTeknik LLC OSSN OPEN SOURCE SOCIAL NETWORK v6.3 LTS was discovered to contain an arbitrary file upload vulnerabilit…
-
Critical 9.8
Dataease v1.11.1 SQL Injection via parameter dataSourceId
DataEase v1.11.1 was discovered to contain a arbitrary file write vulnerability via the parameter dataSourceId.
-
Critical 9.1
WordPress GiveWP plugin <= 2.20.2 - Authenticated Arbitrary File Creation via Export function vulnerability
Authenticated Arbitrary File Creation via Export function vulnerability in GiveWP's GiveWP plugin <= 2.20.2 at WordPress.
-
High 7.2
Import any XML or CSV File to WordPress <= 3.6.7 - Admin+ Malicious File Upload
The plugin WP All Import is vulnerable to arbitrary file uploads due to missing file type validation via the wp_all_import_get_gz.php file in versions up to, and including, 3.6.7. This makes it possible for authenticated attackers, with administrator level pe…
-
Critical 9.8
Octobot mishandles Tentacles upload
WebInterface in OctoBot before 0.4.4 allows remote code execution because Tentacles upload is mishandled.
-
High 8.0
URVE Web Manager uploader.php unrestricted upload
A vulnerability was found in URVE Web Manager. It has been rated as critical. This issue affects some unknown processing of the file _internal/uploader.php. The manipulation leads to unrestricted upload. The attack needs to be approached within the local netw…
-
High 8.0CVE-2022-2419 EPSS 13%
URVE Web Manager upload.php unrestricted upload
A vulnerability was found in URVE Web Manager. It has been declared as critical. This vulnerability affects unknown code of the file _internal/collector/upload.php. The manipulation leads to unrestricted upload. Access to the local network is required for thi…
-
High 8.0
URVE Web Manager img_upload.php unrestricted upload
A vulnerability was found in URVE Web Manager. It has been classified as critical. This affects an unknown part of the file kreator.html5/img_upload.php. The manipulation leads to unrestricted upload. Access to the local network is required for this attack. T…
-
Medium 5.4
RuoYi 4.7.3 vulnerable to arbitrary file upload in background management module
An arbitrary file upload vulnerability in the background management module of RuoYi v4.7.3 and below allows attackers to execute arbitrary code via a crafted HTML file.
-
Medium 4.6CVE-2022-32114 Public exploit
Strapi 4.1.12 Cross-site Scripting via crafted file
An unrestricted file upload vulnerability in the Add New Assets function of Strapi 4.1.12 allows attackers to conduct XSS attacks via a crafted PDF file. NOTE: the project documentation suggests that a user with the Media Library "Create (upload)" permission …
-
Medium 6.3CVE-2022-2297 Public exploit
SourceCodester Clinics Patient Management System unrestricted upload
A vulnerability, which was classified as critical, was found in SourceCodester Clinics Patient Management System 2.0. Affected is an unknown function of the file /pms/update_user.php?user_id=1. The manipulation of the argument profile_picture with the input <…
-
Unscored —
eaSYNC < 1.1.16 - Unauthenticated Arbitrary File Upload
The Free Booking Plugin for Hotels, Restaurant and Car Rental WordPress plugin before 1.1.16 suffers from insufficient input validation which leads to arbitrary file upload and subsequently to remote code execution. An AJAX action accessible to unauthenticate…
-
Unscored —
In nextgen-galery wordpress plugin before 2.0.77.3 there are two vulnerabilities which can allow an attacker to gain fu…